Group 1 Elements

Question 1

What are the elements in group 1

Answer 1

Lithium, sodium, potassium, rubidium,cesium, francium

Question 2

What are the group 1 elements call?

Answer 2

Alkaline metals

Question 3

What are the properties of group 1 elements

Answer 3

They all only have one electron on their valence shell

Question 4

What is the university indicator of group 1 elements

Answer 4

Purple color as because their hydroxides dissolve in the water to produce alkaline solutions

Question 5

What are the properties of group 1 elements?

Answer 5

They are soft, shiny, low melting point, highly reactive . Good conductor of heat

Question 6

What happen to the group 1 elements as you go down the group?

Answer 6

Atomic number increases
➢ Reactivity increases
➢ Melting point decreases
➢ Boiling point decreases
➢ Density increases
➢ Softness increases

Question 7

Chemical properties of group 1 metals

Fill in : react readily with oxygen and water vapour in air so they are usually kept under
__ to stop them from reacting
● All group 1 metals react with cold water to form _________ and an alkaline
solution (metal hydroxide)
● Universal indicator colour change in an alkaline solution colourless to ______

Answer 7

react reactively with oxygen and water vapour in air so they are usually kept under
Oil to stop them from reacting
● All group 1 metals react with cold water to form hydrogen gas and an alkaline
solution (metal hydroxide)
● Universal indicator colour change in an alkaline solution colourless to purple

Question 8

Word equation of group one metal

Answer 8

Lithium +Water=Lithium hydroxide + hydrogen
Others

Question 9

Use of lithium

Answer 9

For medication treatment of mental illness(mood stabilization)

Question 10

Use of sodium

Answer 10

Heat exchange in some nuclear reactors （Chemical industry)

Question 11

Use of potassium

Answer 11

Use in fertilizers

Question 12

Use of rubidium and caesium

Answer 12

Atomic clocks